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KMID : 0361319840160010035
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Korean Journal of Medical Technologists
1984 Volume.16 No. 1 p.35 ~ p.44
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Study of normal range on serum Na^(+), K^(+) level using flame photometry and ion selective electrode analyzing method
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鄭惠仁/Jeong, Hae In
成日永/李賢淑/金暎姬/柳順任/鄭樂昇/Sung, Il Young/Lee, Hean Suk/Kim, Young Hee/Yu, Soon Im/Chung, Nak Seung
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Abstract
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Using Corning 405 flame photometer and Corning 902 Na/K analyzer, we have studied on the normal range of Na+ and K+ level in serum by flame photometry and ion selective electrode analyzing method
(1) Among the 265 healthy male and female employees, we measured mean, S.D. and obtained recalculated results with excluding those outside3 S.D.
The results are as follows;
Na+(mEq/L), Normal range. Borderline
(X+2 S.D.) (N.R.*N3 S.D.)
405Flame. 140.66+7.02 N.R.N+10.53
902I.S.E. 142.138.02 N.R.N12.03 *N.R.: Normal Range.
K+ (mEq/L),
405Flame. 4.06+0.74 N.R.N+ 1.11
902I.S.E. 4.12+0.80 N.R.+12.03
(2) Also we tried to calculate the normal range applying Hoffmann´s method based on the laboratory records of Seoul Paik Hospital during the period of Jan. 1982-Dec. 1982 by flame photometer and Jan. 1983-Dec. 1983 by ion selective electrode analyzer. It was 1, 970 cases (M : F=1.25 : 1) for flame photometry and 2, 919 cases (M : F=1.27 : 1) for ion selective electrode analyzing method. The range of 95% on the probability paper are as follows;
Na+(mEq/L),
405Flame. 140.3+7.2
902I.S.E. 141.2+8.8
K+(mEq/L),
405-Flame, 4.04-0.77
902-I.S.E. 4.1+0.85
(3) After grouping of sex and age on the laboratory records, we measured mean, S.D. with exception of the groups that showed severely irregular pattern and recalculated same above (1)
Na (mEq/L) (X2 S.D.)
405Flame, 130.5148.0
902I.S.E 127.4153.3
K (mEq/L)
405Flame 3.55.5
902I.S.E 2.65.4
These ranges are scattered broadly in comparison with above the results of (1), (2). Even though out-ranged groups were excluded from the statistical analysis, it is not suggested as pro-per method to calculate the mean value under applicated by normal distribution. The result, how-ever, appeared significant for reference value for normal range in or out-patients.
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